Self and jacob keechee



@einen pigistes gant @ffire- CHARLES BUTTERWORTH, OF MIAMISBURG, OHIO, ASSIGNOR TO HIM- SELF lAND JACOB KERCHER.

' 13mm Param: No. 64,946, dated my 21,1867.

IMPROVEMENT IN LIITING-JAGK.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, CHARLES BUTTERWORTH, of Miamisburg, in the county of Montgomery, in the State of Ohio, have invented a new and improved Car1iage-Jack; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon. v i 4 The nature of my invention consists in the construction of the upright parts as usual, and in attaching to the side of the base part supporting pieces with horizontal planes for a roller, thereby forming a movable fulerum for the lever. I

To enable others skilled in the art to make and use my invention, I will proceed to describe itsconstruction and operation. I

'Ihe figure represents a side view of' the carriage-jack.

B represents the upright supported by the base G. It has a square oriiice for the reception ofthe part "A,

and to the side is attached a steel spring-catch, C, which catch is attached to the upright by a screw at its lower end, and near the top is a projection, m, extending inward, and which enters holes within the upright A, and holds the upright at the altitude to which it is raised by thelever, and to vlet it down the upper part is grasped by the fingers, (the weight being relieved by pressure on the lever,) and drawn outwards into the guide D; thus relieved it descends. The side of the upright B is slotted for the lever E, and on either side of this slot are attached supportingl pieces F, having plane .surfaces ou which rests the roller n. This roller is attached to the lever by a metallic strap passing over a groove in the centre of the roller. The end of the lever is connected tothe upright A by a pin, o, which passes through the slotted end ofthe upright. The dotted lines indicate the relation of the lever and upright.

Operation.

The jack being placed under a carriage-axle the lever is depressed, thus elevating the upright A, the springeatch serving to hold it at the point to which it is. elevated. At each movement of the leverlthe roller serving as a fulcrum to the lever changes position on the plane of the supporting pieces.

What I claim as my invention, and desire to secure by Letters Patent, isi The combination and arrangement of the nprights A and B, the lever E with its fulcrum-roller n, and the supporting pieces F, constructed substantially asdescribed and for the purpose specified. v

CHARLES BUTTERWORTH.

Witnesses FRANK B. Moanison,

Trios. D. MITCHELL. 

